Freezing point of water is__________...? Mcqs

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Freezing point of water is__________...?

(A) 0°C
(B) -2°C

(C) -4°C
(D) None of above

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White bloods cells are also known as________...?

(A) Thrombocytes
(B) Leucocytes

(C) Erythrocytes
(D) None of These

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Which of these are not found in the food web...?

(A) Air
(B) Sun

(C) Human
(D) None

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The heat from Sun reaches to earth in form of waves called _____...?

(A) Conduction
(B) Radiation

(C) Convection
(D) None

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The gas used in a refrigerator to cool water is___________...?

(A) Nitrogen
(B) Carbon dioxide

(C) Methane
(D) Tetrafluoroethane

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Vacuum tubes have been replaced by__________...?

(A) Conductors
(B) Diodes

(C) Transistors
(D) None of these

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Sound cannot travel through __________...?

(A) Solid
(B) Liquid

(C) Gases
(D) Vaccum

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Centrifugal force is always directed _____...?

(A) Towards centre
(B) Away from centre

(C) Along the circular path
(D) All sides

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What are the primary colors of Light...?

(A) White, Black, Blue
(B) Red, Yellow, Blue

(C) Red, Orange, Blue
(D) Red, Green, Blue

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Soap and detergents remove the dirt from clothes due to__________...?

(A) Osmosis
(B) Capillary action

(C) Lowering of interfacial tension
(D) Diffusion

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